The word dyslexia is derived from the Greek dys, meaning poor or
inadewuate and lexis means words of language. Dyslexia is a
reading disorder that results fromleft hemisphere brain damage
and is characterised by semantic errors in reading single words
aloud (e.g., reading SPIRIT as whiskey.
Two camps of explanations to this syndrome has been proposed.
One states that deep dyslexia is the result of a residual left
hemisphere reading system that has lost the normal ability to
pronounce a printed owrd without reference to meanin (SHallice
and Warrington, 1980).
The other camp states that the cluster of deficits associated
iwth deep dyslexia in particular the powerful effect of
concreteness on success of word reading and reh occurrence of
frank semantic errors, might be the hallmarks of exclusive
reliance on a right hemisphere reading system (COltheart,
1980).
My question is simply what the typical characteristics of this
disorder is, and how the right hemisphere hypothesis can can
account for this reading disorder. THere seems to be a bit of
controversey with regard to this, and anyone with some up to
date information with regard to research in this area, please
let me know.
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